Buick 10237350 Outlet Radiator Coolant Hose Assembly (Lower)

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Inspect the upper and lower radiator hoses and heater hoses for deterioration, leaks, and loose hose clamps every 15,000 miles (24,000 km) or during seasonal maintenance in early spring and the beginning of fall or winter, as weakened hoses can lead to unexpected failures. Ensure the engine and cooling system are cold before inspection. Look for signs of cracking, rotting, or collapsed hoses and replace as needed. Check for weak or swollen spots along the hose length, indicating the need for replacement. When replacing hoses, take caution when removing them to avoid damaging the component necks. If a hose is stuck, don't use sharp tools; instead, make a careful perpendicular slice along the stuck portion and peel the hose off. Clean the hose connections, inspect and replace clamps as required. To install, dip the new hose ends in clean engine coolant for ease, slide clamps onto the hose, fit the hose ends onto the connections, and secure clamps at least 4 inches from the hose ends. Close drains, refill the cooling system with a suitable coolant mixture, and check for leaks with a pressure tester or by running the engine to normal operating temperature and inspecting for leaks around hose fittings and connections.